Sewer-trap



(No Model.)

J. F. OGRADY.

SEWER TRAP.

No. 246,193. Patented Aug. 23,1881.

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NTTED STATES PATENT Ormea.

JAMES F. OGRADY,.OF CHICAGO, ILLINOIS.

SEWER-TRAP.

SPECIFICATION forming part of Letters Patent N o. 246,193, dated August 23, 1881.

Application filed June 11, 1881.

To all whom it may concern Be it known that I, JAMES F. OGRADY, a citizen of the United State, resident ot' Chicago, in the countyA of Cook and State of Illinois, have invented a new and valuabule Improvernent in Sewer-Traps; and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation ofthe same, reference being had to the 1o annexed drawings, making apart of this specification, and to the letters and ligures of reference marked thereon.

Figure l of the drawings is a representation of a vertical section ot' my invention. Fig. 2

is a top view, and Fig. 3 is a horizontal section.

This invention has relation to means for ob viating the deleterious effects of noxious ,gases 1n drain-pipes; and it consists in the construczo tion and novel arrangement of parts as hereinafter set forth and claimed. 4; In the accompanying drawings, the letter A designates the outer cup or receiving vessel or chamber ofthe drain, and B the inner or discharging. pipe, vessel, or cham ber, rising within the receiver A toward its upper margin, said vessel B connecting directly with the drain-pipe C.

D represents the gas-cap, having no bottom,

3o but consisting of a top, a., and side wall, b.

This cap is arranged in the receiver with its top over the discharging-vessel and its side wall extending down betweenV the latter and the interior wall of said receiver, nearly to the bottom thereof, its lower or free edge being some distance below the mouth of the dischargingvessel, as shown in the drawings. The gas- (No model.)

the disinfectant-chamber d. These perforations are only made in the inner wall of the hollow gas-cap, above the mouth of the discharging-vessel, so that the effect of' the disinfectant is not produced, except on such gas as may escape under extreme pressure, forcing out the column of water between the discharging-vessel and the side wall of the gas-cap.

E represents a perforated guard or scraper, arranged around the lower portion ofthe gascap, within the receiving-vessel, and designed to prevent the entrance of solid matters into theinner passages. Should sediment accumulate in the receiver, below the scraper or guard, it is designed to provide means for letting it escape directly into the drain-pipe C. Ihisis accomplished by making the dlscharging-ves 'sel B independent of the drain-pipe, and providing the latter with a concave seat, e, at its mouth, and the former with aconical bearing, g, to tit neatly in sail seat, which may be packed with rubber or otherwise renderedgastight. The gas-cap being then connected to the inner discharging-vessel,thelattermay he raised, so that there will be a free escape between its joint end g and the seat e of the drain-pipe into the latter.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-

The combination, with the receiver A and the discharging-vessel B, rising within the same, of the gas-cap D and its disinfectantehamber (I, substantially as specitied.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES F. OGRADY.

Witnesses E. E. GRAHAM, V. EVRARD. 

